Modelling of static and dynamic milling forces in inclined operations with circle-segment end mills

被引:30
作者
Pelayo, Gorka Urbikain [1 ]
机构
[1] Univ Basque Country, UPV EHU, Fac Engn, Dept Mech Engn, Plaza Europa, Donostia San Sebastian 20018, Spain
来源
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY | 2019年 / 56卷
关键词
Circle-segment end-mills; Modelling vibration; Chatter; 5-Axis milling; STABILITY PREDICTION; CUTTING FORCES; PART I; ROUGHNESS; SURFACES;
D O I
10.1016/j.precisioneng.2018.11.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Circle-segment mills are new solid end mills with oval profiles that begin to substitute ball end-mills in some applications. They are intended for high performance finishing of complex surfaces in 5-axis operations. This work deals with the mechanical characterization of such tools. A time domain model is proposed to predict tool's cutting behavior in static and dynamic conditions. The influence of tool geometry, orientation tilt and lead angles, modal parameters and cutting conditions was modeled. As a result, an accurate method is presented to predict forces and vibrations in inclined milling operations. This can be very useful to avoid vibrations during the last steps in the manufacturing of blisk and impellers that may harm the workpiece quality. Theoretical simulations against experimental data are provided to validate the approach for this new tool concept.
引用
收藏
页码:123 / 135
页数:13
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